package com.hui.demo.filter;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import java.io.IOException;

/**
 * 过滤器
 * @author ziv
 * @date 2018-12-15
 */
@WebFilter(filterName = "userFilter", urlPatterns = "/*")
public class UserFilter implements Filter {

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        System.out.println("userFilter init");
    }

    @Override
    public void doFilter (ServletRequest servletRequest, ServletResponse servletResponse,
                          FilterChain filterChain) throws IOException, ServletException {
        System.out.println("do userFilter");
        filterChain.doFilter(servletRequest, servletResponse);
    }

    @Override
    public void destroy () {
        System.out.println("userFilter destroy");
    }
}
